ksort_recursive¶

Recursively sorts an array by key.

Description¶

ksort_recursive( array &$array [,
    $unused = null,
    int $sort_flags = SORT_STRING ] ) : bool

Sorts recursively an array by key, maintaining key to data correlations. See ksort().

Parameters¶

array¶

The input array.

unused¶

The index. Used through recursion.

sort_flags¶

You may modify the behavior of the sort using the optional parameter sort_flags, for details see sort().

Return Values¶

Returns TRUE on success or FALSE on failure.

Examples¶

<?php
$fruits = array(
    "banana"=>[
        "d"=>"Cavendish",
        "a"=>"Pisang Raja",
        "b"=>"Lady's Finger",
        "c"=>"Apple ",
        ],
    "apple"=>[
        "d"=>"Cortland",
        "a"=>"Empire",
        "b"=>"Fugi",
        "c"=>"Gala",
        ]
    );
ksort_recursive($fruits);
print_r($fruits);
?>

The above example will output:

Array
(
    [apple] => Array
        (
            [a] => Empire
            [b] => Fugi
            [c] => Gala
            [d] => Cortland
        )
    [banana] => Array
        (
            [a] => Pisang Raja
            [b] => Lady's Finger
            [c] => Apple
            [d] => Cavendish
        )
)